Diesel Audi Q5: MOT pass rate

84.6% of diesel Audi Q5s pass the MOT first time, measured across 77,455 DVSA tests on that fuel type alone. Average mileage at test was 82,493.

Diesel against the other Audi Q5 versions

Why the fuel type changes the number

Diesels carry DPFs, EGR valves and stricter smoke limits, so emissions and exhaust faults account for failures petrol cars never see.

On the Audi Q5 specifically, petrol is the strongest at 87.9%, and this diesel version sits 0.6 points below the 85.2% model average.

What it means if you are buying one

There is little to choose between fuel types on this model, so decide on running costs and mileage rather than MOT record. Buying a damaged one? run it through the analyzer, check the exact car, decode the VIN and check the mileage before you bid.

Mileage is part of the answer

The average diesel Audi Q5 had covered 82,493 miles at test, against 53,105 for the petrol. That is above average, the point where suspension bushes, drop links and exhaust corrosion start showing up as advisories before they become failures.

Fuel type and mileage are tangled together: diesels are usually bought by higher-mileage drivers, so some of any gap between fuels is the miles rather than the engine. The per-year figures on the Audi Q5 page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Audi Q5

1. Headlamp levelling device inoperative, 0.7% of tests (4.81x the national rate for this defect)
2. A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, 3.8% of tests (2.48x the national rate for this defect)
3. Engine MIL illuminated indicating a malfunction, 1.6% of tests (1.27x the national rate for this defect)
4. A suspension pin, bush or joint excessively worn, 3.7% of tests
5. Tyre tread depth not in accordance with the requirements, 2.5% of tests
6. A tyre seriously damaged, 2.2% of tests
7. A spring or spring component fractured or seriously weakened, 1.8% of tests
8. The aim of a headlamp is not within limits laid down in the requirements, 1.7% of tests
9. a brake lining or pad worn below 1.5mm, 1.6% of tests
10. A tyre cords visible or damaged, 1% of tests

From 77,708 DVSA-tracked diesel Audi Q5 tests, 2024, split out from the Audi Q5's other fuel types. DVSA testers marked 4.4% of these flagged defects as "dangerous", against 5.11% nationally. See which fuel type fails on the most dangerous defects nationally for how that compares across the whole fleet.

Most common MOT advisories on a diesel Audi Q5

Flagged but doesn't fail the car, a different list from the failures above.

1. A suspension pin, bush or joint excessively worn, 20.6% of tests (1.54x the national rate for this defect), also fails
2. a brake lining or pad worn below 1.5mm, 13.8% of tests (1.48x the national rate for this defect), also fails
3. Brake disc or drum significantly and obviously worn, 4.4% of tests (1.38x the national rate for this defect)
4. Tyre tread depth not in accordance with the requirements, 30.2% of tests, also fails
5. A tyre seriously damaged, 9.6% of tests, also fails
6. Brake disc or drum excessively weakened, insecure or fractured, 7.1% of tests
7. Number plate inscription missing or illegible, 2.4% of tests
8. A suspension component excessively damaged or corroded, 1.7% of tests
9. A spring or spring component fractured or seriously weakened, 1.4% of tests, also fails
10. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 1.2% of tests

From 77,708 DVSA-tracked diesel Audi Q5 tests, 2024.

Other Audi Q5 fuel types

• Petrol Audi Q5 - 87.9%

All Audi Q5 MOT data · Every model